Aap01 hpa crazy upgraded

400fps?  This is not useable at any UK site and, if it retains the full auto function, is no longer classified as an airsoft weapon but as a firearm.

Can someone more familiar with HPA, explain how having light parts increases the FPS?

If moving parts are lighte, with the same air pressure / chamber capacity pushing a standard weight vs pushing a lighter weight will have less resistance

To maintain equal muzzle velocity the air pressure ought to be dialled down if ‘lighter’ / more efficient parts are fitted 

 

If effect you’re giving a light puff on standard parts and a harder blow on lighter parts

 

 

Classifieds item descriptions from sellers may also be very subject to ‘buyer beware’

 

 

General 4

Posted March 29

It's not a problem 

All it means is just turn down the pressure from regulator. 

I was trying to explain how ifficient it is with the upgraded parts compared to another similar pistol with some upgrades.